这种英文感谢信怎么写

从美国培训回来，感谢培训师的培训和周到的款待，希望以后继续保持联络。

我非常高兴参加了这次培训，我写这封信是感谢你在培训期间对我的真诚指导和热情款待，在那里我学到了很多，也还有不少的疑问，希望以后能通过邮件向你进一步的请教，再次感谢....

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Dear xxx
I am xxx. I have come back to China recently. Thank you for your keeping open doors to me and gave me a heartly training when I was in America. I hope we can keep touch with each other.

High reguards!
落款

感谢同事在我生病期间看望 ，并送礼物。 dear xxx, i am writing to express my heartfelt thanks for sending me a such wonderful present while i was in the hospital.it was nice of you to come and see me, and i was so surprised that you had bought me a present. when i opened it i saw it was just the kind of thing i had always wanted. i like the colors and the shape of the frame. i will probably hang it in my bedroom, or on the empty wall near the bookcase in the living room. it was so nice of you. thanks again for the present and hope to see you soon. yours truly, xxx